New boy group n.SSign have revealed their dance practice video for "Wormhole: New Track".

In the video above, the n.SSign members practice their intricate, powerful choreography. "Wormhole: New Track" is the title song of the group's debut album 'BIRTH OF COSMO', and it's about falling really hard for someone and being unable to get out.

Watch n.SSign's dance practice above, MV here, and let us know what you think in the comments below.